Forced air systems, like furnaces, air conditioning and heat pumps, move warm or cool air to your home through ducts and vents.

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  • 12x24x4 AAF Flanders PREpleat LPD MERV 10 High Capacity 4-inch Depth (6 Filters)
    MERV 8
    AAF Flanders

    12x24x4 PREpleat LPD MERV 10 High Capacity 4-inch Depth

    From $178.99
    From $178.99 $0.00
    Case of 6 $29.83/filter
  • 16x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011630 (12 Filters)
    MERV 1-4
    AAF Flanders

    16x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $87.99
    $87.99
    Case of 12 $7.33/filter
  • 18x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011830 (12 Filters)
    MERV 1-4
    AAF Flanders

    18x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $93.99
    $93.99
    Case of 12 $7.83/filter
  • 24x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012436 (12 Filters)
    MERV 1-4
    AAF Flanders

    24x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $149.99
    $149.99
    Case of 12 $12.50/filter
  • 30x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.013030 (12 Filters)
    MERV 1-4
    AAF Flanders

    30x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $249.99
    $249.99
    Case of 12 $20.83/filter
  • 10x10x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011010 (12 Filters)
    MERV 1-4
    AAF Flanders

    10x10x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $64.99
    $64.99
    Case of 12 $5.42/filter
  • 16x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011618 (12 Filters)
    MERV 1-4
    AAF Flanders

    16x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $65.99
    $65.99
    Case of 12 $5.50/filter
  • 12x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011230 (12 Filters)
    MERV 1-4
    AAF Flanders

    12x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $72.99
    $72.99
    Case of 12 $6.08/filter
  • 20x22-1/4x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.01202214 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x22-1/4x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $74.99
    $74.99
    Case of 12 $6.25/filter
  • 19x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011922 (12 Filters)
    MERV 1-4
    AAF Flanders

    19x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $95.99
    $95.99
    Case of 12 $8.00/filter
  • 21x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012121 (12 Filters)
    MERV 1-4
    AAF Flanders

    21x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $95.99
    $95.99
    Case of 12 $8.00/filter
  • 12x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011218 (12 Filters)
    MERV 1-4
    AAF Flanders

    12x18x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $63.99
    $63.99
    Case of 12 $5.33/filter
  • NaturalAire Ultra MERV 13 (12 Filters)
    MERV 13
    AAF Flanders

    NaturalAire Ultra MERV 13

    From $174.99
    From $174.99 $0.00
    Case of 12 $14.58/filter
  • AAF Flanders PREpleat Activated Carbon Odor Control (12 Filters)
    AAF Flanders

    PREpleat Activated Carbon Odor Control

    From $152.99
    From $152.99 $0.00
    Case of 12 $12.75/filter
  • 18x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011825 (12 Filters)
    MERV 1-4
    AAF Flanders

    18x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $67.99
    $67.99
    Case of 12 $5.67/filter
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Forced air systems, like furnaces, air conditioning and heat pumps, move warm or cool air to your home through ducts and vents. To prevent dust and debris from being blown into your home along with that warm and cold air, your system will have one or maybe more filters. The filters not only improve indoor air quality but they also protect your forced air system. When filters get clogged with too much dust, they reduce the efficiency of your system and increase heating and cooling costs, since its harder for air to move from your heating system into your home. The build-up of hot air behind a very clogged filter can even raise the temperature near your heating system enough to trigger its emergency shut-off mechanism, causing your heating system to turn on and off intermittently. Clogged filters can also mean more mold, dust and other allergens in your home. Our goal at RememberTheFilter.com is to be the very best in indoor air filtration. With so many types of filters and our large selection it can be a little overwhelming. Here is a collection of our most popular filters for your forced air system. Many filters to choose from. Many ways to find them. Search for your filter by size, brand, filtration level and more!